4 siblings we’d invite to happy hour

Siblings share parents, bedrooms, clothes and, most importantly, an unbreakable family bond. So to celebrate National Siblings Day, we've curated a list of four of our favorite sibling duos. To them, we raise a glass and hope we get invited to their next family reunion.

1. Jake and Maggie Gyllenhaal

Jake and Maggie Gyllenhaal are known for their tight bond in Hollywood. (Photo: Carlo Allegri/Getty Images Entertainment)

Regularly seen joking and smiling together on the red carpet, actors Jake and Maggie Gyllenhaal would be the perfect pair to liven up any party. In an interview with People, Jake said that some of his earliest memories were of childhood performances he and Maggie would put on for his family. "She would put on a stage performance of "Cats," and I would be a lone, poor cat sitting in the corner while my sister performed." Nowadays, they frequently can be found promoting each other's projects with the utmost of admiration.

2. John and Jim Harbaugh

While brothers can argue over who will win the Super Bowl, it's not often they actually get a shot at determining the outcome. Such was the case in 2013, when NFL teams coached by each brother went head-to-head in Super Bowl XLVII in New Orleans, with older sibling John coming out the victor. Despite their on-the-field rivalries, the brothers maintain a close relationship outside of football. "We know how each other thinks,"
John said earlier this year. "It's not like we have to explain how we're thinking to one another. Usually, we're three steps ahead with each other in the conversations."

3. Zemer and Amit Peled

Zemer Peled and Amit Peled are siblings acclaimed for their accomplishments in the world of art and music. (Photo: Courtesy Zemer Peled)

The arts run strong in these Israeli-born siblings, with
Zemer an acclaimed sculptor and her brother Amit a world-renowned cellist and virtuoso. The two can often be found expressing pride for each other's work on Twitter. In a recent win for both music and art, Amit played his centuries-old cello surrounded by his sister's art for a project called "Pablo and Me" in Cape Cod. That was their first professional collaboration and, according to Amit, "We are hoping to do many more in the future."

4. Serena and Venus Williams

There are sibling rivalries and then there are the intense, whole-world-is-watching kind of rivalry regularly exhibited by
tennis stars Serena and Venus Williams. The pair have an incredible 26 Grand Slam titles between them, eight of which have come from matches played against each other. In other words, we wouldn't dare challenge these two to a game of ping-pong. Outside the sport, the sisters have a fierce closeness, often naming the other as an inspiring and motivating force in their life.